[1] In the paper, after initially describing the requirements for an aircraft to win the Kremer Prize then on offer, Goodhart proposed a two-person monoplane, with a 100 ft wingspan, with each pilot being located in separate nacelles at the wingtips.
[1] The design evolved, so that when construction of the Newbury Manflier commenced in November 1976, the span had increased, and the location of the nacelles moved to approximately half-way between the centre of the craft and the wingtips.
[2] Each pilot sat in their own fuselage, sitting atop of an aluminium-framed bicycle and pedalling a two bladed pusher propeller, located at rear of a fairing.
The project was halted soon after due to hangar space at the base no longer being available, and the success of the American Gossamer aircraft limiting what was left to achieve.
[3][5] Data from The Formation Flight of Human Powered Aircraft across the English Channel in the Spring[6]General characteristics Performance